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Magnesium Alloy MC1-F vs MC1-T6

Magnesium Alloy · MC1 temper comparison

MC1-F and MC1-T6 are two conditions of the same magnesium alloy grade, MC1: F (as fabricated) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. MC1-T6 is the stronger of the two: yield strength 145 MPa (21 ksi) against 97 MPa (14.1 ksi) for MC1-F, about 49% more; tensile strength follows at 275 MPa (39.9 ksi) vs 165 MPa (23.9 ksi). MC1-T6 is the more ductile: elongation 4% versus 2.5% for MC1-F, and MC1-T6 is harder (70 HB vs 60 HB). On the shop floor, MC1-F welds better (very good vs good).

MC1-FChoose it when it will be welded.

MC1-T6Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

MC1-F vs MC1-T6: properties

MC1-FMC1-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

165 MPa23.9 ksi
275 MPa39.9 ksi

Yield Strength (0.2% offset)

97 MPa14.1 ksi
145 MPa21 ksi

Elongation at Break

2.5%
4%

Shear Strength

140 MPa20.3 ksi
145 MPa21 ksi

Fatigue Strength (Endurance Limit)

69 MPa10 ksi
75 MPa10.9 ksi

Fracture Toughness (K_IC)

12 MPa·√m10.9 ksi·√in
11 MPa·√m10 ksi·√in

Charpy V-Notch Impact (RT)

3 J2 ft·lbf
2 J1.2 ft·lbf

Hardness, Brinell

60 HB
70 HB

Same in both: Elastic (Young's) Modulus 45 GPa6.5 Msi · Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35

Physical

Density and transition temperatures.

Same in both: Density 1.81 g/cm³0.07 lb/in³ · Melting Point (Solidus) 470°C878 °F · Liquidus Temperature 595°C1,103 °F

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

120°C248 °F
130°C266 °F

Same in both: Thermal Conductivity 72 W/m·K41.6 BTU/hr·ft·°F · Specific Heat Capacity 1,050 J/kg·K0.25 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 26 µm/m·K14.4 µin/in·°F · Latent Heat of Fusion 373 J/g160 BTU/lb · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 12 % IACS · Electrical Resistivity 1.41×10⁻⁷ Ω·m5.55 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -1.55 V · Corrosion Resistance 20 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Weldability

75 / 100
65 / 100

Same in both: Machinability 95 / 100 · Machinability Rating (AISI 1212 = 100 %) 500% · Formability (cold) 10 / 100 · Castability 85 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 310 MJ/kg133,276 BTU/lb · Embodied Carbon (primary production) 30 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 30%

Strength versus weight

Yield strength against density for every magnesium alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

701001502001.41.51.61.71.8Density (g/cm³)Yield strength (MPa) — log scaleMC1

MC1-F vs MC1-T6 — frequently asked

Is MC1-T6 stronger than MC1-F?

Yes. MC1-T6 has a typical yield strength of 145 MPa (21 ksi) against 97 MPa (14.1 ksi) for MC1-F — about 49% more. Tensile strength is 275 MPa (39.9 ksi) vs 165 MPa (23.9 ksi).

Which condition does FabDigit quote by default, F or T6?

T6 is the default MC1 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which welds better, MC1-F or MC1-T6?

MC1-F. Its weldability rates very good (75/100) against good (65/100) for MC1-T6.

Ready to make it?

Upload a CAD file and FabDigit prices the part in MC1-F and MC1-T6 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.